199880714

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{20509}}^1$

素因数の和:20965

約数の個数: 16

約数和(自身を含む): 327831840

約数和(自身を除く): 127951126

約数列:

[1, 2, 11, 22, 443, 886, 4873, 9746, 20509, 41018, 225599, 451198, 9085487, 18170974, 99940357, 199880714]

約数ペア:

[(1, 199880714), (2, 99940357), (11, 18170974), (22, 9085487), (443, 451198), (886, 225599), (4873, 41018), (9746, 20509)]